Mining-machine.



No. 889,149. PATENTED MAY 26, I908. A. PALMROS & E. L. HOPKINS.

MINING MACHINE. APPLICATION rum) APR.19,1902.

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PATENTEDMAY 26,

T w A A. PALMROS & E. L. HOPKINS. MINING MACHINE. APPLICATION IiLBD APR.19,1902.

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APPLICATION FILED- APR. 19, 1902.

PATENTED MAY 26. 1908.

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v @MQFM' EV 15 chine being broken away. I on the linens; of Fig.1.

'45 or flange arranged vertically and a web lying.

' to receive the upper side angle bars A. The projections d are similarly shoulderedor ref UNrTED STATES Pant oEEroE.

ALEXANDER PALMROS, or COLUMBUS, OHIO, AND EDWARD L. nornnvs, or PENN SYLVANIA, ASSIGNORS TO THE JEFFREY MANUFACTURING COMPANY,

OHIO, A CORPORATION OF OHIO.-

OF COLUMBUS,

MINING-MACHINE.

Patented May 2c, 1908.

' Application fi1ed Apri1 19, 1902. Serial No. 103,779.

EDWARD L. HOPKINS, a citizen of the United States, residing at Erie, in the county of Erie,

in the State of Pennsylvania, have invented certain new and useful Improvements in Mining-Machines, of whichthe following is a specification, reference being had therein to e accompanying drawing; Figure 1 is a plan view of a mining machine embodying the improvements Fig-2 is a side elevation of thesame, art of the maig. 3 is a section Fig. 4 is a section on theline y, yv of Fig. .1. i Fig. 5 is a longitudinal sectional elevation. Figs. 6, 7, 8, 9 andlO show details.

The machine is made up of two' principal arts, one being the bed frame, and the other eing the carriage which slides forward and back on the bed, and carries the operative The bed compriseslongitudlnal sillarts. like parts, and cross connecting parts at the front and rear. The side parts of the bed have the'bottom bars A and' the upper bars A. The four side bars are at the front ends joined by cross connectingplate or bar,in--

dicated as a whole by B. And at their rear ends they are joined by a connecting bar B. The top bars A are also straight from end to end. The bottom bars A eXtend fIOLXl the rear forward some d stance 111 the vertical planes of, and parallel with, the top bars A.

At points near the front end they are turned inward toward the central longitudinal plane of the machine. i

The different parts of. the bed frame of the 40 present machine are particularly designed throu hout o rovide for the reatest strength with the east weight of metal. The

top longitudinal bars A and the bottom bars,

A are all made of angle irons, each with a web per part d, and the central narrow standard art d, the-latter having projections d at the ottom. The upper part B is-recessed at cessed and joined at b to receive the bottom angle bars-A. i

B is a bottom closing plate which extends between the downwardly extending legs at d, thus inclosing the passage way through which moves the central supporting bar of the cutter carriage tov be described.

The connecting piece B is shaped in such way as to reduce metal and retain full strength. It is castwith a top, wider, part (i, and bottom part b, and a series of inclined braces b connecting the parts d'and b;

' Otherwise it is open, thus greatly reducing the amount of metal in its construction.

The cross plate B at the bottom is fitted I by means of tongues 5 into grooves in the standards Z of the cross connecting part B. The rear transverse connecting piece B is cast in such way that it receives the longi tudinal bars at its corners. It is shaped to have a series of resting and holding places for the bracing device to be described which is applied atthe rearend of the machine when in uscfthese being indicated at b", 6

b, b, there being adjacent to each, ribs or projections which hold the lower end of the braclng or fastening device 1n whichever position it 1s put. This construction permits of theapplication of the brace or jack in longitudinal planes near one side of themachine, or near the other side, or central of it,

thus permitting the machine to be firmly fastened in place according as the character of slire shall be applied at one point or another. The upper bars A of the bed carry one element of the carriage feeding device, these, in this construction being rack bars D. .They are secured to the undersides of the bars A, and have their teeth turned downward.

The bed fr'ame is constructed to furnish 'two guides for the carriage, an upper one composed of the bars A, A, and the lower one consisting of the above described passage way in bottom part of the connecting bar B. The apparatus at the other end of the bed for ciamping or fastening it firmly in place is shown at E. -ln.many respects it is substantially similar to those now in use, and does not require illustration or. description in detail. It consists mainly of the coal engaging part e carried by the forked swinging trainee, and the. part e is adapted to be foi'ced by the nut Wheel at 2 against the coal :in -front of the machine. But the present the floor demands that the clamping pres.

sides can be held firmly in place.

' attachment is extended. To receive these there are earse cast at or near thecenter of the front cross piece B, and ears 6 near that end of the cross bar which is on the side opposite to that toward which the machine vtends to be carried by the reaction of the cutters.

At E is shown the rear 3ack or clamping device. v It is formed with two diverging egs havlhg sockets or ears at their inner ends,

two legs are placed on the holding sectionsat such distances apart that they can be placed upon the resting and holding places at b", b ,-b, or 5 on the rear connecting piece B. If down pressure is principally wanted at the left side of the machine, the

5, 5 if the greater pressure is needed at the right hand side they are placed on the sections b, l); if the center, they are placed at b, b. The ribs or projections on the bar B prevent the legs from sliding laterally after they have been adjusted inposition.

Upon the bed frame (constructed of the parts above described) is mounted the carriage, which moves back and forth thereon, and bothactuates and advances the cutting apparatus.

.1. indicates a platform for supporting the shafting and gearing. It has elevated parts at f which rest upon the top of the side bars A. of the bed, and lips f which lie on the out side of the bed bars, and prevent lateral dis- Between these side, bar-like placement.

arts f f the platform drops to a relatively ow plane, enact the purposes of the con struction of the machine being to reduce the height to the utmost. G is an electric motor which also is arranged in a relatively low osition, it being behind the ts armature shaft 9 is arranged orizontally and longitudinally of the machine, the commutato'r being at the rear end, and the gearing in front. The field metal of the motor is cast with wings for sup orting and guiding plates G, substantialy similar to the parts at f f of the platform-F.

At 9, 9 there are flanges or'webs' on the motor field metal by which it is firmly bolted to the platform.

It will be noted that the motor frame wd the gear sup orting platform or framel are detachable ffom each other sbthat either latforin F.

seams one may be removed from the bed frame without removing the other. Thisarrangement of parts permits the motor to be detached as an entirety without dismounting any of the wer transmitting mechanism or the remova of all of the power transmitting latform F and ismounting the mechanism on the ower also the platform without motor.

H indicates the cutting. apparatus which of the general carriage) formed of the longitudinal bar I, and the cross head I. At the rear end this chain carriage is adjustabl'y' secured to the platform. F. The longitudinal bar I at the center is passed through the guide-way aperture in the lower art of the front cross connecting bar B. his bar I lies in horizontal planes considerably below those of the top guide-way formed by the barsA. is a sprocket wheel at the lower end of a top This chain is arranged in a triangular form, and is supported upon a carrier (part vertical shaft 9', which is mounted on the platform F; and with this sprocket wheel the cutter chain It engages. Shaft j is driven by the armature shaft, K being a large bevel Wheel on the vertical shaft, and K being a bevel pinion on the armature shaft meshing therewith.

I When the motor is in action the shaft drives the chain and the cuttin of the coal is effected. Simultaneously with this the cutting a paratus can be moved longitudinally oh t e bed as follows: L is a transverse shaft on the carriage, and having pinions Z, Z at its ends, each engaging with the aforesaid racks D on the bed A. This shaft is rotated slowly inone direction to .feed the cutting apparatus forward and rapidly in the opposite direction to withdraw the carriage. To impart these two motions and s eeds use is made of the following device: I is a su plemental or countershaft above shaft L. l t is provided with a WOIII]. wheelmwhich engages with a worm m on the shaft 9'. The worm wheel m and the shaft M are rotating in one direction whenever the motor and cutting chain are in action; but from the shaft M the different speeds'and motions are taken. At one end of this shaft M there is a gear wheel 'N enga ing with gear wheel N on the shaft L. feathered to the shaft M, and adapted to engage with the gear wheel N, .or with a disk thereon, said wheel and disk being otherwise loose on the shaft. economize room, the wheel and the disk are formed in the way shown, that is-to-say, each at the end of a journal or sleeve t 0 there is a clutch Preferably, to

which is fitted in the bearing N therebeing;

two such bearings N and N for the shaftlti,

which are supported by standards M- The worm gearing is so designed as to give to the shaft L a relatively slow speed, and as this shaft is geared directly by the wheels N N to the carriage feeding shaft L, the latter will, to move the carriage forward, rotate correspondingly slow'ly. At the other end of the shaft M there is a mechanism for imparting to the carriage moving shaft L a hi her speed in the opposite direction.

l is a gear wheel loosely mounted on the shaft M. It engages with a wheel P on a supplemental shaft p behind. the shaft M. Rigid with the wheel P is the wheel P which in turn meshes with the wheel I on the shaft L.

At R there is a second clutchadapted to enga e with the wheel 'P, or a disk carried there by; and when this clutch is in engagement the train of gearing from P to L will be set-in motion, and the shaft L will be rotated in, such way as to move the carriage backward with a relatively high speed.

T is a clutch shifting lever pivoted at t and extending back over the top of the motor G. It operates the clutches at O and B through the fork at 1. There is also an automatic. device for throwing the clutches at each end ofthe movement of the carriage.

R" is a sliding rod mounted in bearings at r and 1' at one side of the carriage. It en-' gages loosely with a bell crank lever R one arm of which is connected by a link It to the fork r of the shifting lever.

When the carriage reaches the front end of its travel, the rod It strikes a projecting part 1' on the bed A and pushes back on the bell crank lever R and this throws the clutch. out of action, whereupon the carriage is arrested. Then the operator by means of lever T throws the other clutch It into engagement with the pull-back gearing, and thereupon the carriage is brought back to the rear of the bed. As soon as it reaches the rear end, the opposite end "of the rod R impinges upon another projection and the clutch R is disengaged and left in its inactive position.

By arranging the motor and power transmitting devices wnn'ected therewith in the manner herein shown, we provide a machine 'which is relatively low and extremely compact and is adapted particularly for use in low veins of coal. It will be seen,that the shafting and gearing of the power transmitting lllQvlliLIllSll] for both the carriage and the chain is arranged substantially within the hor zontal planes of the motor and that all the parts are readily accessible for adjustments or replacements. We are aware of the fact that it has been proposed to construct mining machines with the power transmittingdevices for advancing the carria e and the cutter chain arranged at one side of the motor, but not entirely within the horizontal planes thereof.

A construction such as herein shown embodies the utmost economy of space vertiand turned inward at their front ends, and

secured to the said central downwardly extending part of the front cross connecting bar to form inclined braces therefor, substantially as set forth.

2. In a mining machine of the character described, the combination with a suitable bed frame arranged to be securely held in position adjacent to the face of the material to be cut, a carriage arranged to travel forward and back on said bed frame and anendles's cutting. a p paratus mounted upon the carriage, of a front brace or jack for the bed frame comprising a bar, the upper end of which is adapted to engage the material in front of the bed frame at a point in substantially the central vertical longitudinal plane of the machine, said bar extending rearwardly from said point away from the face of the material and toward the side of the machine on which the cutting apparatus travels rearwa'rdly, and being supported by two arms, one pivoted at its lower end to the bed frame in the central longitudinal plane of the machine and the other pivoted to the bed frame at the said side thereof on which the cutting apparatus travels rearwardly.

3. In mining machine of the class described, the combination of a bed frame adapted to rest upon the floor of a mine, a carriage mounted on said bed frame to move forward and back therealong, a suitably housed electric motor mounted upon said bed frame with its armature shaft disposed longitudinally thereof, said motor being suitably secured to said carriage and having its bottom side arranged closely adjacent to the ground-engaging supportsfor the bed frame, so as to travel forward and back in a hori- Zontal plane closely adjacent to the floor of the mine, a cutting apparatus mount-ed upon said carriage and arranged entirely. in front of the said motor housing, and shafting and gearing connecting said motor with said bed frame and cutting apparatus for moving the carriage along the bed frame and actuating the cutting apparatus, respectively! all of said shafting and gearing being confined at one end of said motor within the vertical space between the horizontal planes contain-- scribed, the combination of a bed frarnahav ing suitable carriage feeding mechanism thereon, a carriage mounted on said bed frame to move forward and backward there along, an endless chain cutting ap aratus on said carriage, a suitably housed e ectric motor supported on said bed frame and having its armature shaft arranged longitudinally thereof and suitably secured to said carriage, and shafting and gearing arranged entirely at i one end of said motor housing and comprising a vertically disposed shaft connectedby'bevel gearing with said armature shaft, two transversely mounted shafts connected together b two trains of differently speeded gears,each

0 said transverse shafts being suitably connected to the said carriage feeding mechan ism on the bed frame, one of them being arranged to transmit power to advance the carniage at relatively slow speed, and the other of them being arranged to transmit power to cause the reverse travel ofthe carriage at a greater speed, and a s rocket wheel on saidvertically disposed shaft for driving said and less chain cutting apparatus.

5. In a mining machine, the combination with the cutting apparatus and the carriage of the bed frame, having the top longitudinal bars A, and the bottom bars A and the front connecting cross bars B, having the relatively '30 wide portion to which the said top bars are secured and the relatively narrow depending portion to which the said bottom bars are secured, substantially as set forth.

6. In a mining machine, the combination as with the cutting apparatus and the carriage, of the bed frame having the to longitudinal bars A the bottom bars A an the end cross bar B; having the relatively wide ortion to which the said top bars are secure and the.

in depending standards d adapted to have the said bottom bars secured thereto and'to receive between them the thrust bar of the cutting apparatus and fitted with the detachably secured plate B upon which thesaid as thrust baris'adapted to bear, substantially as set forth.

7.- In a mining machine of the class de.

scribed, the combination of a bed frame having carriage feeding mechanism thereon, a carriage mounted on saidbed frame to move forward and back therealong, an endless chain cutting apparatus, on said carriage, a suitably housed electric"'motor mounted on said bed frame and suitably secured to said 5:5 carriage, said" motor having the axis of its armature shaft disposed in a horizontal; plane, and shafting and gearing arranged entirely at one end of said motorhousing'and comprising a vertically disposed shaft con- 0 nected through bevel gearing with said armature shaft, two horizontally disposed trans versely mounted shafts arranged between the said end of the motor housing and said ver- ;,tically disposed shaft, one of them being A 6-5 geared-to said vertically disposed shaft and the other one of them connected to the first by two trains of diflerently speeded gearing, and suitably connected at either end to said carriage feeding mechanism on the'bed, and a sprocket wheel on-said vertically disposed shaft for driving said endless chain cutting apparatus.

8. In a mining machine of the class described, the combination ofa bed frame having carriage feeding mechanism mounted thereon, a carriage mounted on said bed frame tomove forward and back therealong, an endless chain cutting apparatus on said carriage, a suitably housed electric motor mounted on said bed frame and'suitably secured to said carriage, said motor havin the axis of its armatureshaft disposed in a orizontal plane, and shafting and gearing arranged entirely at one end of said motor housing and comprising a vertically disposed shaft connected through bevel caring with the said armature shaft, two orizontally disposed transversely mounted shafts arranged between the said end of the motor housing andsaid vertically dis osed shaft, one of them being geared to sai verticallydispo'sed shaft and the other onebfthem being suitably connected at either end to said carria e feeding mechanism on .the bed frame and connected to the first describedtranss verse shaft by alternately o erative forward slow speed and reverse hig speed gearing,- and. a s rocket-wheel on said vertically disposed s iaft for driving said endless'chain cutting apparatus.

9. In a mining machine of the class described, the combination of a bed framehaving carriage feeding mechanism thereon, a carriage mounted on said bed frame to move forward and back therealong, an endless chain cutting apparatus on said carriage, a suitably housed electric motor mounted on said bed frame and suitably secured to said carriage, said motor having the axis of its anmature shaft arranged longitudinally of the said bed frame, and shafting and gearing arranged entirely in front of the front end of said motor housing and com rising a vertically disposed shaft connects through bevel gearing with the said armature shaft, two horizontally disposed transversely mounted shafts having their axes of rotation in substantially the same vertical plane between the said front end of said motor housin and the said vertically disposed shaft, one 0 said transverse shafts being suitably connected at ioo either end to said carriage feeding mechan- Twheel on said vertically disposed shaft for drivin said endless chain cuttinglap aratus.

10. n a minin machine of t e c ass described, the com ination of a bed frame forward and back therealong,

a suitably housed electric motor mounted, upon said bed frame with its armature shaft disposed longitudinally of said bed. frame,

said motor being suitably secured to said car-' riage and having its bottom side arranged closely adjacent to the ground-engaging support for the bed frame, an endless chain cutting apparatus mounted upon said carriage and arranged entirely in front of said 'motor housing, and shafting and gearing comprising a vertically disposed shaft connected through bevel gearing with the said armature shaft, two horizontally disposed transversely mounted shafts arranged between the front end of said motor housing and said vertically disposed shaft, one of said transverse shafts being suitably connected to said carriag mechanism on the bed and geared to the other one by two trams of differently speededgearing, and a sprocket wheel on said vertically disposed shaft for drivin said endless chain cutting apparatus, all of said shaftingand gearing being confined at the front end of said'motor housing within the vertical space between the horizontal planes containing the top of said housing and the said ground-engaging supports of the bed frame. g

11. In a mining machine of the class described, the combination of a bed frame having carriage feeding mechanism thereon, a carriage mounted on said bed frame to move an endless chain cutting apparatus on said carriage, a suitably housed electric motor mounted on said bed frame, suitably secured to said carriage and having its armature shaft disposed Y in a horizontal plane, and shafting and gearing arranged entirely in front of the front end of said motor housing and comprising a ver-,

tically disposed haft, a bevel gear secured to said vertical shaft, gearing interposed between said bevel gear and said armature shaft, a horizontally disposed carriage moving shaft transversely mounted below said bevel gear and between the front end of said 'motor housing and said vertical shaft and suitably connected at either end with said carriage feeding mechanism'on the bed frame, a horizontally disposed intermediate shaft transversely mounted above said bevel gear and connected with said carriage moving shaft. by two trains of differently smelled gearing, worm gearing connecting said inter mediate shaft with the vertical shaft, and a sprocket wheel,,on said vertical shaft for driving said endless chain cutting ap iaratus.

12. In a mining machine of the class described, the combination of a bed frame, a

suitable cutting apparatus, a motor supported onsaid bed frame and arranged to slide forward and back therealong, a ,plat.

form F arranged adjacent to one end of said motor and supported on said bed frame to slide forward and back thereon, means for detachably connecting said platform to the -motor, and power transmitting mechanism supported by said platform for moving said motor and platform together along the bed frame.

13. In a mining machine of the class de scribed, the combination of a bed frame, a

suitable cutting apparatus, a motor supported upon said bed frame and arranged to slide forward and back thercalong, a platform F arranged adjacent to the front end of said motor and supported on said bed frame to slide forward and back thereon, means for detachably connecting said platform to the motor, and power transmitting mechanism supported by said platform for actuating the sald cutting apparatus and moving the said motor and platform l together along the bed frame.

14. In a mining machine, the combinatiorh of a bed frame, a motor supported on the bed frame and adapted to move forward and back.

thereon, and a gearing supporting platform arranged ad1accnt to the motor, supported on thebed frame to move forward and back thereon and detachably connected to said motor whereby either the motor or the gear sup )orting platform 7 may be dismounted wit rout dismounting the other.

15. In a mining machine, the combination of a bed frame, a motor supported on the bed frame and adapted to move forward and back thereon, a gearing and shafting supporting platform arranged adjacent to the with said bed frame.

16. In a mining machine, the combination with a cutting apparatus adapted to move forward and back on a bed frame and having a thrust bar, of a bed frame having top longitudinal bars A, and a front connecting cross bar B, said cross bar having the relatively wide upper portion to which the said top bars are secured, and the relatively narrowed depending portion having a recess adapted to receive the thrust bar of said cutting a )paratus, and the detachably secured plate upon which the raid thrust bar is adapted to bear.

, 1.7 In a mining machine, the combination with a bed frame having top longitudinal bars, bottom longitudinal ground-engaging supportingbars and suitable connecting bars and braces, of a carriage mounted upon said top longitudinai bars of the bed; frame to .move forward and back therealong, a suit ably housed electric motor similarly mounted upon said ,bed frame and suitably secured to 'said carriage with its armature shaft arranged longitudinally of said bed frame and having its under side depending beneath said top longitudinal bars to a point closely adj acent to the said ground-engaging sup orts' for the bed frame, so as to tra'veforwar and back ina horizontal plane closely adjacent to the floor of the mine, a cutting apparatus seem-e PALMRos, affix my signature in the presence of two Witnesses.

ALEXANDER PALMROS.

Witnesses to Mexander Palinros:

LEOTA I. SAYLoR, R. Gnos. Huronms.

In testimony whereof I, thesaid EDWARD L. HOPKINS aiiix my signature in the presence of two Witnesses.

EDWARD L. HOPKINS.

Witnesses to Edward L'. Hopkins:

R. Gnos. Huroums, EMMA L. VAN DERVEER. 

